import axios from 'axios'
import { Notification, MessageBox, Message, Loading } from 'element-ui'
import store from '@/store'

import { getSessionItem } from "@/utils/sessionStorage";
import { tansParams, blobValidate } from "@/utils/ruoyi";
import cache from '@/plugins/cache'
import { saveAs } from 'file-saver'
import router from '@/router'
let downloadLoadingInstance;
// 是否显示重新登录
export let isRelogin = { show: false };

axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8'
// 创建axios实例
const service = axios.create({
  // axios中请求配置有baseURL选项，表示请求URL公共部分
  baseURL: process.env.VUE_APP_BASE_API,
  // 超时
  timeout: 20000
})

// request拦截器
service.interceptors.request.use(config => {
  // 是否需要设置 token
  const isToken = (config.headers || {}).isToken === false;
  const H4AToken = getSessionItem() || store.state.homeStatus.E_token;
  // console.log(isToken, H4AToken);
  if (H4AToken && !isToken) {
    config.headers["Authorization"] = "Bearer " + H4AToken; // 让每个请求携带自定义token 请根据实际情况自行修改
  }

  // 是否需要防止数据重复提交
  const isRepeatSubmit = (config.headers || {}).repeatSubmit === false;

  // get请求映射params参数
  if (config.method === "get" && config.params) {
    let url = config.url + "?" + tansParams(config.params);
    url = url.slice(0, -1);
    config.params = {};
    config.url = url;
  }
  if (
    !isRepeatSubmit &&
    (config.method === "post" || config.method === "put")
  ) {
    const requestObj = {
      url: config.url,
      data:
        typeof config.data === "object"
          ? JSON.stringify(config.data)
          : config.data,
      time: new Date().getTime(),
    };
    const sessionObj = cache.session.getJSON("sessionObj");
    if (sessionObj === undefined || sessionObj === null || sessionObj === "") {
      cache.session.setJSON("sessionObj", requestObj);
    } else {
      // const s_url = sessionObj.url;                  // 请求地址
      // const s_data = sessionObj.data;                // 请求数据
      // const s_time = sessionObj.time;                // 请求时间
      // const interval = 1000;                         // 间隔时间(ms)，小于此时间视为重复提交
      // if (s_data === requestObj.data && requestObj.time - s_time < interval && s_url === requestObj.url) {
      //   // const message = '数据正在处理，请勿重复提交';
      //   // console.warn(`[${s_url}]: ` + message)
      //   return Promise.reject()
      // } else {

      // }
      cache.session.setJSON("sessionObj", requestObj);
    }
  }
  return config;
}, error => {
   
    Promise.reject(error)
})

// 响应拦截器
service.interceptors.response.use(res => {
  
    // 未设置状态码则默认成功状态
    const code = +res.data.code || 200;
    // 获取错误信息
    const msg = res.data.msg || "未查到相关数据信息";
    // 二进制数据则直接返回
    if(res.request.responseType ===  'blob' || res.request.responseType ===  'arraybuffer'){
      return res.data
    }
    if (code === 401) {
      if (!isRelogin.show) {
        if (router.currentRoute.path == '/screenComponents/demo') return
        if (router.currentRoute.path == '/screenComponents/radarMap') return
        if (router.currentRoute.path == '/screenComponents/relationMap') return
        if (router.currentRoute.path == '/screenComponents/basicFileMap') return
        if (router.currentRoute.path == '/screenComponents/recordMap') return
        if (router.currentRoute.path == '/screenComponents/indicatorsMap') return
        if (router.currentRoute.path == '/screenComponents/sandianMap') return
        if (router.currentRoute.path == '/login') return
        isRelogin.show = true;
        MessageBox.confirm('登录状态已过期，您可以继续留在该页面，或者重新登录', '系统提示', {
          confirmButtonText: '重新登录',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).then(() => {
   
        isRelogin.show = false;
      
      }).catch(() => {
        isRelogin.show = false;
      });
    }
      return Promise.reject('无效的会话，或者会话已过期，请重新登录。')
    } else if (code === 500) {
      Message({
        message: msg,
        type: 'error'
      })
      return Promise.reject(new Error(msg))
    } else if (code !== 200) {

      Notification.error({
        title: msg
      })
      return Promise.reject('error')
    } else {
      return res.data
    }
  },
  error => {
  
    // let { message } = error;
    // if (message == "Network Error") {
    //   message = "当前网络不稳定，请稍后再试";
    // }
    // else if (message.includes("timeout")) {
    //   message = "当前网络不稳定，请稍后再试";
    // }
    // else if (message.includes("Request failed with status code")) {
    //   message = "当前网络不稳定，请稍后再试";
    // }
    // Message({
    //   message: message,
    //   type: 'error',
    //   duration: 5 * 1000
    // })
    return Promise.reject(error)
  }
)

// 通用下载方法
export function download(url, params, filename) {
  downloadLoadingInstance = Loading.service({ text: "正在下载数据，请稍候", spinner: "el-icon-loading", background: "rgba(0, 0, 0, 0.7)", })
  return service.post(url, params, {
    transformRequest: [(params) => { return tansParams(params) }],
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
    responseType: 'blob'
  }).then(async (data) => {
    const isLogin = await blobValidate(data);
    if (isLogin) {
      const blob = new Blob([data])
      saveAs(blob, filename)
    } else {
      const resText = await data.text();
      const rspObj = JSON.parse(resText);
      const errMsg = rspObj.msg
      Message.error(errMsg);
    }
    downloadLoadingInstance.close();
  }).catch((r) => {
    console.error(r)
    Message.error('下载文件出现错误')
    downloadLoadingInstance.close();
  })
}

export default service
